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Ehemalige Mitarbeiter

Prof. Dr. Martin Lotz

Lupe [1]

Mathematics Institute
Zeeman Building
University of Warwick
Coventry CV4 7AL
United Kingdom
Persönliche Homepage
http://homepages.warwick.ac.uk/staff/Martin.Lotz/ [2]

Publikationen in der Arbeitsgruppe

Counting Complexity Classes for Numeric Computations III: Complex Projective Sets
Citation key BCL-Counting-Complexity-Classes-For-Numeric-Computations-Iii-Complex-Projective-Sets
Author Peter Bürgisser and Felipe Cucker and Martin Lotz
Pages 351-387
Year 2005
Journal Foundations of Computational Mathematics
Volume 5
Number 4
Abstract In [Bürgisser & Cucker 2004a] counting complexity classes $#P_R$ and $#P_C$ in the Blum-Shub-Smale setting of computations over the real and complex numbers, respectively, were introduced. One of the main results of [Bürgisser & Cucker 2004a] is that the problem to compute the Euler characteristic of a semialgebraic set is complete in the class $FP_R^R}$. In this paper, we prove that the corresponding result is true over $mathbb C$, namely that the computation of the Euler characteristic of an affine or projective complex variety is complete in the class $FP_C^C}$. We also obtain a corresponding completeness result for the Turing model.
Link to publication [3] Link to original publication [4] Download Bibtex entry [5]
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